Amoré is in South Africa (per her profile.) US law does not apply.
1. Amoré: you need to contact a local matrimonial lawyer immediately, if not sooner. Most of the issues you are discussing, except for your wife's apparent hatred for you, are things that an attorney can deal with.
2. As someone who has gone through divorce with a less than civil spouse, it is absolutely essential that you approach this as unemotionally and realistically as possible. Vent with your friends as necessary, but you need to put aside your feelings of betrayal and make your decisions with a clear head and a realistic appraisal of what is possible and what is not. Yes she is being a jerk, and yes, it sucks. There's nothing you can do about that. You need to focus on what you have control over. An attorney can tell you that.
3. I did find a website that describes family law in South Africa:
http://www.divorcelaws.co.za/. From what I've read, it is
possible that Amoré's wife would be obligated to provide for her health care, presumably at least for anti-depressants, maybe for HRT, too, given that Amoré is unemployed and unable to pay for it herself. But I am not a lawyer, least of all a South African one. Local, competent legal advice is an absolute necessity.
3. It looks like SA has some variety of uncontested divorce, but given Amoré's wife's antipathy, this doesn't sound like a good idea for Amoré, even if her wife would agree to it. There's division of property and spousal support; again, under the circumstances, Amoré needs competent legal representation if she doesn't want to get screwed over.
4. Amoré: you need to contact a local matrimonial lawyer immediately, if not sooner.